package cn.wolfcode.exception;

import cn.wolfcode.quest.JsonResult;
import com.alibaba.fastjson.JSON;
import org.apache.shiro.authz.UnauthorizedException;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.method.HandlerMethod;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@ControllerAdvice
public class HanderException {

      @ExceptionHandler(RuntimeException.class)
      public String handleException(Model model,RuntimeException ex, HandlerMethod handlerMethod, HttpServletResponse response) throws ServletException, IOException {
          //把异常信息打印出,方便我们开发的时候找bug
          ex.printStackTrace();
          //判断当前执行的方法是否是ajax的方法(@ResponseBody)
          if(handlerMethod.hasMethodAnnotation(ResponseBody.class)){
              //如果是,则返回jsonresult
              JsonResult json = new JsonResult(false,"操作失败,请联系管理员!");
              //使用response对象输出数据(json字符串)
              response.setContentType("application/json;charset=utf-8");
              response.getWriter().print(JSON.toJSONString(json));
              return null;
          }else {
              //如果不是,则返回错误视图
              model.addAttribute("ex",ex);
              return "common/error"; //返回的错误视图
          }

      }

    @ExceptionHandler(UnauthorizedException.class)
    public String handleUnauthorizedException(Model model,RuntimeException ex, HandlerMethod handlerMethod, HttpServletResponse response) throws ServletException, IOException {
        //把异常信息打印出,方便我们开发的时候找bug
        ex.printStackTrace();
        //判断当前执行的方法是否是ajax的方法(@ResponseBody)
        if(handlerMethod.hasMethodAnnotation(ResponseBody.class)){
            //如果是,则返回jsonresult
            JsonResult json = new JsonResult(false,"操作失败,请联系管理员!");
            //使用response对象输出数据(json字符串)
            response.setContentType("application/json;charset=utf-8");
            response.getWriter().print(JSON.toJSONString(json));
            return null;
        }else {
            //如果不是,则返回错误视图
            model.addAttribute("ex",ex);
            return "common/nopermission"; //返回的错误视图
        }

    }


}
